DE1534411A1 - Resilient flooring board - Google Patents

Description

DR. TH. BERENDT · 8 MUNICH 8 -1 C O Λ Λ 1

PATENT ADVERTISER ROTTALSTRASSe's ^ ^ ^ ^ ''

TELEPHONE 407824

Applicant:

Verton & Wellensiek 662-PG

Flooring
532 Bad Godesberg

Resilient flooring board

The innovation concerns an elastic floor covering plate, in particular for the covering of sports fields.

Known resilient floor coverings usually consist of waterproof sheets or sheets of rubber or plastics. If you use elastic panels for special purposes, such as covering sports fields want, either massive panels made of rubber-elastic material or those made of foamed plastics, for example foam rubber, foamed polyvinyl chloride or from foams based on polyurethane in question. Solid rubber elastic plates have next to theirs Impermeability to water has the disadvantage of heavy weight and significant manufacturing cost. But also foam plastics with elastic properties are impermeable to water, as their pores must be closed in order for a Floor coverings maintain favorable elasticity. Open-cell foams compress too much to be used as flooring to be used.

In addition, some have, due to their mechanical properties, in themselves for heavy-duty floor coverings suitable plastics, such as polyvinyl chloride or certain polyurethanes, have only a low level of resistance to hot water, acids and / or alkali

(Art. 7, Paragraph 1, Paragraph 2, No. 1.SaU 3 of the «amendment claus .

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lien. Others lose their elasticity at low temperatures.

For use especially as a surface for open sports fields that are exposed to the weather and air pollution are known materials of this type and have to withstand unusually high mechanical loads not suitable or too expensive in terms of material costs and manufacturing effort. On the other hand, there is a need to keep open sports fields dry and usable even in bad weather, with the necessary Elasticity, as it has, for example, a well-tended grass area, should be retained.

From the USA patent specification 2 977 364 a waterproof rammed surface is, among other things, for playgrounds made of small asphalt bonded rubber particles known, natural or synthetic rubber particles are used and the rubber particles are provided with a coating of asphalt and very finely ground fillers, which through Press together to be compressed and glued.

This surface must be used on, preferably cemented or asphalted, smooth and firm floors; no fibrous rubber particles, in particular particles from old car tires, can be used and most rubbers, especially of natural origin, are also resistant to solvents after vulcanization, as they are in There are traces in the asphalt, sensitive, which leads to a general incompatibility of rubber and asphalt. In addition, holes that have been torn into the base with sharp objects, e.g. spikes from sports shoes, do not close by themselves.

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directions are required and the production of the raw material for the covering must be strictly adhered to Grain sizes, hengen proportions and using temperature.

These disadvantages are overcome by the elastic floor covering panels according to the invention. It was found, that an elastic, water-permeable flooring board on the basis of interconnected particles of synthetic or natural rubber, which is particularly suitable for use as a covering for sports fields which is characterized in that it is made up of a layer of one another by means of an adhesive associated chips of vulcanized synthetic or natural, optionally containing fillers Made of rubber and a second layer, which consists of a felt made of synthetic fibers.

Such flooring panels are, as has been found, to a high degree water-permeable and correspond in their Elasticity of that of a naturally grown grass soil. They are also inexpensive to manufacture because you can can make use of waste from the rubber industry. In particular can be old car tires and similar waste products made from vulcanized rubber that contain fillers such as fabric inlays, carbon black and the like are provided.

Natural rubber is used as the rubber material synthetic polybutadiene or polyisoprene chuke or olefin-acrylonitrile polymerizates in question. The Sennitzel size should preferably be in the range of a few millimeters to a few centimeters in order to achieve a sufficiently tight packing. Additionally

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A preferably porous filler can also be used such as glass fibers, rock wool, pieces of Biras or asbestos.

A solvent-free, water-insoluble one- or two-component adhesive should preferably be used as the adhesive will. In addition, the adhesive should remain elastic so that the elasticity of the floor covering panel is not impaired will. Examples of adhesives are polyisocyanates, butadiene-acrylonitrile copolymers, Diisocyanate-polyol addition products or diepoxide-polyamine addition products in question, possibly in a suitable manner in their chemical structure or by Additions can be modified. So you can use a di- or polyisocyanate-based adhesive with a little water and receives a bond with a foam structure, which enables the elasticity of the flooring panel to be adjusted.

The gluing should take place in such a way that the layer of rubber chips remains sufficiently porous and loose to allow water to pass through. For this purpose, it is preferable to select a weight ratio of the adhesive to the rubber chips in the range from 0.13 to 0.2 to 1. The amount of adhesive has an impact on the elasticity of the flooring panel. The gluing can, if necessary, take place at elevated temperature and under pressure if one wants to achieve closer packing and shorten the drying time.

The second layer of the floor covering panel according to the invention consists of a felt made of synthetic fibers. As synthetic Polyamide fibers, in particular caprolactara polymers, have proven to be particularly suitable.

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But also fiber fleece made of polyester fibers or polyacrylonitrile or acrylonitrile copolymers and polyolefin fibers are suitable.

The two layers are preferably joined together by gluing, using the same adhesive that can be made to connect the rubber chips to serve. The adhesive must be applied so thinly by spraying or spraying that the Water permeability is retained.

The flooring panel according to the invention can according to a preferred embodiment be provided with a metal insert, which increases the mechanical strength serves. As a metal insert, in particular structural steel mesh or arresting wire come into question, whereby in the case of use from rusting iron reinforcements these by means of suitable surface treatment methods can be protected.

It is also preferred to provide the surface of the layer of rubber chips with recesses that are once the drainage of penetrated water, on the other hand, facilitate the installation of heating coils.

According to a further embodiment, in the rubber layer the floor covering plate according to the invention is provided with a heating device which is embedded in the layer Heating elements, either in the form of electrical resistance heating or heating coils for a heated heat transfer medium. It has been shown that the air permeability of the floor covering panel according to the invention is so great that the air convection within the layer structure for safe heating of the Plate is sufficient in all its strength. Even if the heating elements are very hot, there is no reason to fear that the

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Floor covering panel is damaged by thermal effects.

The flooring panel according to the invention should preferably have a rectangular or square shape, with recesses roughly in the form of grooves and tongues for a fixed connection of the panels can be ensured.

In the drawing, a flooring plate according to the invention is shown, the layer of natural or synthetic rubber (1) and the associated layer of synthetic fiber felt (4) can be seen. The flooring slab, has a circumferential groove (3) on two adjacent sides and tongues (2) on the opposite sides.

The recesses (5) are used for water drainage and / or the installation of heating elements. A dashed line is also shown built-in steel mesh (6) shown that increases the mechanical strength of the flooring plate. The drawing represents a combination of the preferred embodiments.

The inventive flooring panel is excellent for suitable for the surface of sports fields, as they are always ideal soil conditions due to their water permeability and elasticity guaranteed. Their heatability also ensures that the sports field can be used in winter.

In addition, the flooring plate according to the invention is used for other purposes, in particular as a doormat or as an insulating one Covering suitable for floors in other buildings or vehicles, taking into account its sound-absorbing properties Use can be made.

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Claims (8)

15344Π - 7 - claims 1.) Elastic, water-permeable flooring board he base of interconnected particles of synthetic or natural rubber, especially for the Use as a covering for sports fields, characterized in that it consists of a layer of each other cuttings of vulcanized, optionally containing fillers, connected by an adhesive Rubber and a second layer is composed, which consists of a mushroom made of synthetic fibers. 2. Floor covering panel according to claim 1, characterized in that it is a solvent-free Contains water-insoluble one- or two-component glue as an adhesive. 3. Floor plate according to claim 1 to 2, characterized gekennze lohnet that the Ge weights never acts of tele glues it to the Kautechukachnitzeln in the range 0.13 ▼ on lying to 0.2: 1. 4 «Bodtribelagplatte according to claim X to 3, characterized gekenneeioh.net that the second layer is a felt made of polyamide fibers. 909825/0243 New underlay (ΑΛ7 | 1 Abs.2Nr.1 S <* 3 d « v. 4. ». INSPECTED 5 »Floor covering panel according to claim 1 to 4, characterized marked that it is provided with a metal insert. 6. Floor covering panel according to claim 1 to 5, characterized in that the surface of the Layer of rubber chips is provided with recesses. 7. Floor covering panel according to claim 1 to 6, characterized in that in the rubber chip layer Heating elements are provided. 8. Floor covering panel according to claim 1 to 7, characterized in that it is a rectangular or square in shape, the edges having recesses in the form of grooves and tongues. 909825/0243